Obedience

Eat moldering flesh rife with parasitic worms and drink putrid alcohol distilled from strange fungi during a 1-hour feast. You gain a +4 profane bonus on all saving throws against disease and effects that cause nausea.

Demoniac

Source Book of the Damned - Volume 2: Lords of Chaos pg. 131: Sickness Within (Sp)ray of enfeeblement 3/day, warp wood 2/ day, or contagion 1/day2: Parasitic Link (Su) Once per day with a successful touch attack, you can infest a living creature with tiny worms and gnawing mites unless the target makes a Fortitude save (DC 10 + 1/2 your HD + your Constitution modifier). These parasites retain an unholy link to you, draining that creature’s energy and transferring it to you. This infestation persists for 10 rounds, during which you act as if hasted and the infested victim is staggered. As a swift action, you can quicken the parasitic infestation—this reduces the remaining duration by 1 round, but causes the parasites to chew and feed at an accelerated rate, dealing 1d2 points of Constitution damage to the target. You can only maintain a parasitic link with one creature at a time. These parasites count as a disease effect.3: Fungal Ruin (Sp) Once per day, you may target a creature with a destruction spell. A creature slain by this effect crumbles into a mound of russet mold (Pathfinder RPG Bestiary 273) that immediately releases a cloud of spores in a 20-foot-radius burst. This ability functions as a 9th-level spell.